Regulating valve



Dec. 29, 192s. 1,567,306

J. F. STRAITZ REGULATING VALVE Filed July 9. 1923 hmm Patented Dec. 29,i925.

1,li67,30li

UNTED STATES OFFICE.

JOHN F. STRAITZ, 0F PHILADELPHIA, FENNSYLVANIA, ASSIGNOR TO NATIONALAEROIL BURNER COMclal'll'Y,y OF PHLABELPvI-l, PENNSYL'V 195.31113., ACORPORATION 0F DELAVIARE.

REGULATING VALVE.

Application filed July 9,

To all whom t may concern:

Be it known that l. Jorrit F. Srnarrz, citizen of the United States,residing at Philadelphia, in the county of Philadelphia, State otPennsylvania, have invented a new and useful Regulatingl Valve, of whichthe following is a specification.

The invention relates to improvements in steam regulating valves. Theobject is to provide improved means for indicating the control. Thedevice is especially7 adapted for securing the desired relativeoperation ot a plurality of fuel oil burners, so that each burner shallperform its alloted Work.

' The invention comprises the usual steam valve with an operating handWheel upon which is marked a zero point with the Words Open and Shutflanking said point, and direction arrows pointing toward the said WordsOpen and Shut to indicate the direction of operation in order to securethe desired llow of steam through the valve. In order to indicate thedegree of opening or closing movement, or to indicate the position towhich the valve should be brought to secure the desired regulation offlow, I provide a pointer on the hand Wheel, and a. disc rotatablysecured to a neck provided on the cap or thimble which secures thepacking` for the valve spindle. Upon the upper face of this disc areprovided a zero mark and evenly spaced marginal graduations or marks forcooperating With the pointer on the hand Wheel. The purpose of movablysecuring the disc upon the said cap is to permit a proper adjustment ofthe cap upon the valve neck and then, When the hand Wheel has beenoperated to bring the valve tightly upon its seat, the disc is moved orrotated upon the cap in order to bring the zero mark thereon intoregister with the zero mark on the Wheel. This adjustment of the disc isdesirable not only to permit of varying positions of the cap whichcontrols the packing, but also to permit of varyn ing positions of thehand Wheel due to Wear of the valve or to variations in the thickness ofthe valve Washer, etc. The disc should have a reasonably tightit on theneck of the cap in order to prevent accidental move ment thereon. Thedevice vis especially desrable where a number of oil burners are in use,controlled by said steam valves, so

1923. Serial No. 650,221.

that said valves may be adjusted relatively in order to secure thedesired relative elliciency of the several burners.

Referring to the drawings, -which illustrate merely by Way ot example, apreferred embodiment oli' the invention Fig. 1 is an elevation in partsection oit' a steam valve embodying the invention.

2 is a plan ot' the hand Wheel.

Fig. 3 is a plan ot the graduated disc.

Fig. 4 is a sectional. detail.

Similar numerals refer to similar parts throughout the several views.

The valve body 6 is provided with the neck .7 having its upper endexteriorly threaded, as at 8, and having an oliset recess, as at 9,surrounding the spindle 10, for the packing. The cap 11 is threaded onto the neck 7, and the flanged element 12 is interposed between the capand the neck and has a cylindrical portion as shown, project ing intothe otl'set recess 9 `tor compressing the packing therein. The cap 11has a cylindrical neck 13 at the top tor receiving, with a reasonablytight frictional engagement, the hand operated indicating disc 14,provided With the zero mark and the graduation marks 15 as shown. Thehand Wheel 16 is fitted in the usual Way on the top of the spindle 10.On the top of the hand Wheel 16 are provided the zero mark, the WordsOpen and cShut and the arrows pointing from the zero mark to theseWords, as shown. The hand Wheel is also provided With the pointer 17projecting downwardly from its peripheral margin at the zero point forregistration with the zero point and the graduation marks on the disc14.

It Will be obvious that the cap 11 Will have different rotativepositions on the threaded neck 8 as it is screwed down upon the neck tomaintain the required compression upon the packing in space 9, or whenthe packing is renewed. It will also be understood that the hand wheel16 may have different rotative positions when the valve is in the closedposition, due to the Wear of the valve, the valve Washer or the valveseat, or when the valve Washer is renewed. It is thus to be seen that,When the valve spindle is properly packed and the valve is in the closedposition, the relative positions of the Wheel 16 and cap 11 will varyunder the condtions above enumerated. In order therefore that the zeromark and the pointer 17 0n the hand Wheel 16, Shall register' with theZero mark on the disc 14:, it ienonly necessary to rotate by hand thedisc 14, Whentlie valve is tight closed, to bring the two zero marksinto the desired relationship, after which tllepointer and graduationsWill accurately indicate the steam control until the disturbingconditions, as above indicated, occur. ln such event the disc is againadjusted as ndcated.

In a regulating valve, the combination of a valve body, a valve7 a valvespindle, a spindle operating band Wheel7 a hand operated rotatablyadjustable graduated disc surrounding the spindle and in frictionrelationship With the valve body, the hand Wheel provided With directionarrows'and suitable legends associated therewith, and a pointerconnected with the Wheel for cooperating With the disc graduations.

JOHN F. STRATZ.

